【作者】 张小艳； 王先友； 汪形艳； 粟劲苍； 江兰兰； 吴昊； 吴春；

【Author】 ZHANG Xiao-yan,WANG Xian-you,WANG Xing-yan,SU Jin-cang,JIANG Lan-lan,WU Hao,WU Chun (Key Laboratory of Environmentally Friendly Chemistry and Applications of Minister of Education,School of Chemistry, Xiangtan University,Hunan,Xiangtan 411105,China)

【机构】 环境友好化学与应用教育部重点实验室化学学院,湘潭大学；

【摘要】 通过溶胶-凝胶自组装技术,以酚醛树脂为碳源,采用氧化镍、表面活性剂双模板制备了层次多孔碳,并进一步用硝酸活化。考察了其在6 M氢氧化钾电解液中的循环伏安电化学行为。比较了表面活性剂浓度对所制备材料的电化学性能。循环伏安测试表明:表面活性剂浓度为0.27 M时,所制备的活性多维结构多孔碳电极材料具有相对最好的电容性能,扫描速度为1 mV s^-1时比电容为272 Fg^-1。更多还原

【Abstract】 The hierarchically porous carbons（HPCs）are prepared by sol-gel self-assembly technology via nickel oxide and surfactant as dual template,and phenolic resin as the sources of carbon.Further HPCs are activated by HNO3.The electrochemical properties of activated HPCs are examined by cyclic voltammetry in 6 M KOH electrolyte.The effects of the surfactant concentration on the electrochemical properties of the activated HPCs are compared.It is found that the maximum specific capacitance of activated HPCs for the concentration of surfactant of 0.27 M is 272 F g^-1obtained from cyclic voltammetry at a scan rate of 1 mV s^-1.更多还原